Improvement in hat shearing and finishing machines



A. L. F. MITCHELL. Hat Shearing and PinishingMachine.

No. 221,593. Patented Nov. H, 1879.

W'v'fneas 6,5

In Van/602."

N. PEI'ERS. PHOW-UTHOGRAPMER, WAS HINQYON, D c.

. edges and intermediate UNITED STATES PATENT OFFICE ALBION L. F.MITCHELL, OF

METHUEN, MASSACHUSETTS.

IMPROVEMENT IN HAT SHEARING AND FINISHING MACHINES.

Specification forming part of Letters Patent N 0. 221,593, datedNovember 11, 1879 application filed September 1, 1879.

To all whom it may concern:

Be it known that I, ALBION L. F. MITCH- ELL, of Methuen, in the countyof Essex and State of Massachusetts, have invented certain Improvementsin Hat Shearing and Finishing Machines, of which the following is aspecification.

This invention relates to that class of bat shearing or finishing toolsemploying a rotating tool to shear or remove a portion of the materialon the surface of a hat-body and a bed to support the hat-body andpresent it to therotatin g tool, said bed being pressed toward therotating tool during the operation, so as to press the hat-body directlyagainst the r0 tating tool. Heretofore the bed has been a block adaptedto be moved toward and from the rotating tool, but not to rotate, sothat the same portion of its surface is always brought or used tosupport-the hat-body, and consequently becomes worn or hollowed out bycontinued use. Such a bed requires frequent repairing or resurfacing;for, if used when worn or hollowed, the hat-body is injured and given anuneven or corrugated appearance. Moreover, when such a bed is used thehat-body is liable to be stretched and distorted by friction between therotating tool and non rotating bed.

My invention has for its object to provide a bed which shall be freefrom the abovenamed objections; and to this end it consists in makingthe bed a friction-roller.

' The invention also consists in the means provided for adjusting thefriction-roller, all of which I will now proceed to describe and claim.

Of the accompanying drawings, forming a part of this specification,Figure 1 represents a side elevation of a portion of a machine embodyingmy invention. Fig. 2 represents an end elevation of the same 5 and Fig.3 represents a section on line as a, Fig. 2.

In the drawings, A represents a rotary tool for removing a portion ofthe material from the surface of the hat-body. Said tool is pref erablya metallic roll, grooved to form cuttingsmooth surfaces, as

shown in the Letters Patent issued to meAugust 26, 1879, No. 219,001,for hat=shearin g machine. Although it may be ofany suitableconstruction adapted for use in the class of machines to which myinvention relates, said tool is located on an arbor supported inbearings in a suitable frame-such, for example, as is shown in saidpatent.

B represents the bed or support for the hatbody, which forms the chiefpart of the present invention. Said bed is simply a frictionroll adaptedto rotate freely on a journal formed on the end of a movable supportingarm or lever, O, hereinafter described. The bed or roller B may betapering, as shown, or of uniform diameter, and is located under thetool A, with its axis in the same plane with the axis of the tool A, andis capable of being moved so thatits entire length maybebrought incontact with the tool A, as shown in Fig. 1. The lever O, on which theroller Bis journaled, is pivoted at O to a hollow curved arm, D, whichis pivoted at G to the frame of the machine, and is provided with aworm, E, which is journaled in the arm D and engages with the end of thelever O, the latter being provided with teeth meshing with the threadsof the worm, the Whole constituting a wormgear, by means of which thelever 0 may be turned on its pivot to vary the inclination of the rollerB. The arm D is supported by a rod, H, which rests on a treadle or otherdevice by which the arm D, with its attachments, may be raised andlowered, as shown in my patent above named.

By the described construction ofdevices supporting the roller B thelatter can be readily raised to press a hat-body placed upon it againstthe tool A, lowered to separate the hat-body from the tool, and inclinedto bring one of its ends nearer the tool A than the other when itisdesired to make the hat-body of varying thickness.

Suitable feed-rollers I I are employed to feed the hat-body during theoperation. Said feed-rollers are arranged to operate like the feedrollers in the above-named patent, and the general operation of themachine is the same as described in said patent. The lower feed-roller,I, is preferably supported by mech* anism which is a duplicate of thatabove described for supporting the roller B, so that said feed-roller iscapable of the same motions and adjustments It will be seen tporting-bed is subjected and that is distributed over its on as theroller B.

hat a frictiou'roller as a supto but little wear, tire surface;

adjustable loose or idle rollto support the hat body, in combinationwith a positively-rotated finishingroll, substantially as described.

2. The idle-roll B, its arm a, pivoted in the 1 arm D and extendedrearwardly and formed facing the with teeth, the arm D and its liftingmechanyment of the i ism, and the worm E, combined and arranged so theexpense of bed is avoided.

rolling-bed the friction bed is reduced to tl hat is easily manipulated,bility of the hatbein By the etnplo the hat and imtun, so that the andthere is no liatched by the joint substantially as shown and described,

In testimony whereof I have signed my name i to this specification, inthe presence of two subscribing witnesses, this 21st day of August,

hen the 1 12579.

action of the tool and bed does not rotate. the roller B to be he bed,as there is w The worm-gear enables ld positively in either direction atany desired inclination.

1 claim as my invention- 1. In a hat shearing or finishing mac i ALBIONL. F. MITCHELL.

Witnesses:

CALVIN J. SARGENT,

C. F. BROWN.

